If you are shopping an SBA 7(a) or conventional commercial loan in Idaho, the bank you call first matters more than most borrowers think. A lender that already writes a lot of commercial credit and sits in your state is structurally likelier to say yes than a national name passing through. This page ranks the Idaho-headquartered banks doing the most commercial lending right now, using public Q1 2026 FFIEC call-report data. It is the open-book version of what the paid report does with far more inputs.
Idaho's lenders ride agriculture and a fast-growing Boise corridor, a combination that keeps commercial books busier than the state's population would suggest.
The 10 most active commercial lenders in Idaho
Ranked by commercial and industrial (C&I) loans outstanding, Q1 2026. Bank names link to the live BankingLens scorecard.
| # | Bank | City | Assets | C&I share | ROA | Fit notes |
|---|---|---|---|---|---|---|
| 1 | Northwest Bank | Boise | $1.5B | 37.7% | 1.37% | Community bank, heavy C&I concentration. CRE-heavy book. |
| 2 | Bank of Commerce, the | Idaho Falls | $2.3B | 14.6% | 2.22% | Local commercial lender, a steady commercial book. Top-decile returns. |
| 3 | D.l. Evans Bank | Burley | $3.7B | 7.7% | 1.42% | Mid-size regional, a modest C&I share. CRE-heavy book. |
| 4 | Farmers Bank | Buhl | $665M | 20.0% | 1.64% | Small local lender, an active C&I book. Top-decile returns. |
| 5 | Idaho First Bank | Mccall | $1.4B | 8.4% | 0.65% | Community bank, a modest C&I share. |
| 6 | First Federal Savings Bank of Twin Falls | Twin Falls | $1.4B | 6.0% | 0.98% | Local commercial lender, a modest C&I share. |
| 7 | Ireland Bank | Malad City | $362M | 24.0% | 0.65% | Small community bank, an active C&I book. |
| 8 | Idaho Trust Bank | Boise | $233M | 16.2% | 0.89% | Small local lender, a steady commercial book. CRE-heavy book. |
| 9 | Twin River Bank | Lewiston | $173M | 14.3% | 2.93% | Small community bank, a steady commercial book. Top-decile returns. |
| 10 | Bankcda | Coeur D'alene | $233M | 11.8% | 0.80% | Small local lender, a modest C&I share. CRE-heavy book. |
Assets and ratios are Q1 2026 FFIEC call-report figures. ROA is annualized return on assets. A bank's headquarters city is shown; many lend statewide and beyond.
C&I lending muscle, ranked
Commercial and industrial loans outstanding for the top 10 Idaho-HQ lenders, Q1 2026. This is the single number our ranking leans on hardest.
How we ranked these
Three steps, all of them transparent. First, we took every bank headquartered in Idaho. Second, we loosened the usual 10 percent C&I cutoff to 5 percent here, because Idaho has a shallow commercial-banking bench and a stricter filter would leave too short a list (a bank that is 90 percent home mortgages is not your SBA lender, regardless of size). Of the qualifying banks, 10 cleared that bar. Third, we ranked them by C&I loan dollars outstanding, which already blends balance-sheet size with how committed a bank is to commercial credit, and kept the top 10.
This is an honest, simplified proxy. It does not see a bank's actual SBA 7(a) origination volume (that lives in SBA FOIA data, not the call report), its appetite for your industry, or whether it funded forty SBA loans last quarter or zero. The $49 Borrower Assist report folds all of that in and ranks against your specific deal, not just your state. That is the part worth paying for.
What Idaho looks like for a borrower
Idaho's lenders ride agriculture and a fast-growing Boise corridor, a combination that keeps commercial books busier than the state's population would suggest.
On the numbers: Idaho's 10 headquartered banks carry $11.9B in assets between them, the largest being D.l. Evans Bank of Burley at $3.7B. The median bank keeps 14.4% of its loan book in C&I credit, which is the pool the table below ranks.
None of that tells you which of these banks will fund your specific deal. A $400,000 restaurant acquisition and a $4M owner-occupied warehouse purchase have different optimal lender lists even in the same state, and the ranking above does not split by loan size, industry, or collateral. Treat it as your starting shortlist, not your final answer.
How to use this list
- Start with the bank near you that has the strongest commercial profile, not just the closest branch. A lender with a real C&I book understands your deal faster.
- Ask for the SBA or commercial lending group directly. The general line routes business deals slowly.
- Have a one-page summary ready: use of funds, cash flow, collateral, owner credit, timeline. Banks decide whether to engage in the first ninety seconds.
- Run two banks in parallel, not five. Two real conversations close a loan; five waste everyone's time.
Hero photo: The Colorado Rockies by Peter Pryharski on Unsplash, used here as a regional editorial image for Idaho.